CVE-2025-5222

high

Description

A stack buffer overflow was found in Internationl components for unicode (ICU ). While running the genrb binary, the 'subtag' struct overflowed at the SRBRoot::addTag function. This issue may lead to memory corruption and local arbitrary code execution.

References

https://access.redhat.com/errata/RHSA-2026:54581

https://access.redhat.com/errata/RHSA-2026:54553

https://access.redhat.com/errata/RHSA-2026:54544

https://access.redhat.com/errata/RHSA-2025:12333

https://access.redhat.com/errata/RHSA-2025:12332

https://access.redhat.com/errata/RHSA-2025:12331

https://access.redhat.com/errata/RHSA-2025:12083

https://access.redhat.com/errata/RHSA-2025:11888

https://www.cisa.gov/news-events/ics-advisories/icsa-26-202-04

https://cert-portal.siemens.com/productcert/html/ssa-585531.html

https://unicode-org.atlassian.net/jira/software/c/projects/ICU/issues/ICU-22957

https://lists.debian.org/debian-lts-announce/2025/06/msg00015.html

https://bugzilla.redhat.com/show_bug.cgi?id=2368600

https://access.redhat.com/security/cve/CVE-2025-5222

Details

Source: Mitre, NVD

Published: 2025-05-27

Updated: 2026-08-19

Risk Information

CVSS v2

Base Score: 6.2

Vector: CVSS2#AV:L/AC:H/Au:N/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7

Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00015